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PubMed2000

A taxometric analysis of MMPI-2 Infrequency scales [F and F(p)] in clinical settings.

The typology of overreporting, which is a deliberate attempt to amplify symptoms, simulate psychopathology, or understate coping capacities, was examined using taxometric procedures with Minnesota Multiphasic Personality Inventory-2 (MMPI-2) Infrequency scales [F and F(p)] in psychiatric inpatient and Veterans Affairs (VA) medical center treatment settings. Overreporting was identified as a taxon using several taxometric procedures, and the multiple estimates of the taxon base rate were consistent within each sample. Mean base-rate estimates were .27 and .19 for the psychiatric inpatient and VA medical center settings, respectively. Overall classification rates ranged from .80 to .97 across the 2 settings, which supports the use of F and F(p) in the identification of overreporting on the MMPI-2 in psychiatric inpatient and VA medical center settings.

Adult↗
PubMed2001

Assessing posttraumatic stress disorder with the MMPI-2 in a sample of workplace accident victims.

In this study, the predictive capacity of the Minnesota Multiphasic Personality Inventory-2 Posttraumatic Stress Disorder-Keane (MMPI-2 PK) scale was examined in a sample of trauma victims who experienced a serious workplace-related accident and subsequent injury. In keeping with a number of previous investigations, the PK scale was largely ineffective in identifying posttraumatic stress disorder (PTSD) beyond overall symptom and functional severity. In contrast, sets of clinical and content scales proved to be significant predictors of PTSD. These findings suggest that the PK scale is not particularly useful in detecting PTSD in civilian trauma samples. Clinicians might be best advised to use the MMPI-2 clinical and content scales in their assessment of PTSD in civilian patients presenting with a history of trauma.

Accidents, Occupational↗
PubMed2001

Meta-analytic methods, the Rorschach, and the MMPI.

In response to concerns described by H. N. Garb, J. M. Wood, M. T. Nezworski, W. M. Grove, and W. J. Stejskal (2001), the authors present the weighted and unweighted means and medians of the effect sizes obtained by J. B. Hiller, R. Rosenthal, R. F. Bornstein, D. T. R. Berry, and S. Brunell-Neuleib (1999). These indices of central tendency are presented separately for Minnesota Multiphasic Personality Inventory (MMPI) and Rorschach effect sizes, both for all the studies in the meta-analysis and for a 10% trimmed sample designed to obtain more robust estimates of central tendency. The variability of these 4 indices is noticeably greater for the MMPI than for the Rorschach. Meta-analysts must compute, compare, and evaluate a variety of indices of central tendency, and they must examine the effects of moderator variables. The authors also comment briefly on the use of phi versus kappa, combining correlated effect sizes and possible hindsight biases.

Humans↗
PubMed2002

MMPI-A scores and high points of male juvenile delinquents: scales 4, 5, and 6 as markers of juvenile delinquency.

The Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) clinical, supplementary, and content scale score patterns for 655 male delinquents were examined. Low scores on Scale 5 (Masculinity/Femininity) were found to be the most frequent deviation, followed by elevations on Scales 6 (Paranoia) and 4 (Psychopathic Deviate). This is consistent with previous research, although the importance of Scale 5 deviations has been little noted because of the traditional focus on scale elevations only. Classification analysis indicated that a combination of MMPI-A scales discriminated between this delinquent sample and the normative sample, with a sensitivity of 90%-95% and a specificity of 80%-85%. This level of sensitivity was maintained in a replication sample (N = 473).

Adolescent↗
PubMed2002

Incremental validity of selected MMPI-A content scales in an inpatient setting.

To date, relatively few studies have been published evaluating the validity or incremental validity of the content scales from the adolescent version of the Minnesota Multiphasic Personality Inventory (MMPI-A; J. N. Butcher et al., 1992). A sample of 629 psychiatric inpatient adolescents who had completed the MMPI-A was used to evaluate the ability of selected clinical and content scales to predict conceptually related clinical variables. Criteria were based on clinician ratings, admission and discharge diagnoses, and chart reviews. Results from hierarchical multiple and logistic regression analyses indicated the content scales offered incremental validity over the clinical scales and supported the use of the content scales as an adjunct to the traditional clinical scales.

Adolescent↗
PubMed2006

Evaluating the latent structure of the MMPI-2 F(p) scale in a forensic sample: a taxometric analysis.

P. A. Arbisi and Y. S. Ben-Porath (1995) originally proposed that the Infrequency Psychopathology scale, F(p), be used as the final step in an algorithm to determine the validity of a Minnesota Multiphasic Personality Inventory-2 (MMPI-2) protocol. The current study used taxometric procedures to determine the latent structure of F(p) among examinees with profiles that would necessitate the interpretation of F(p) when using Arbisi and Ben-Porath's proposed algorithm. Participants included a subsample of 289 consecutively referred pretrial forensic examinees adjudicated incompetent to stand trial with high Infrequency (F) scale scores, thereby providing a sample that would be expected to have a high base rate of persons with bona fide psychopathology and persons with incentive to overreport psychopathology. Using MAMBAC and MAXEIG, F(p) produced a taxonic latent structure within the subgroup of examinees who obtained raw scores on F of greater than 17. These results support Arbisi and Ben-Porath's original proposal to use F(p) to identify a distinct subgroup of overreported MMPI-2 protocols within forensic psychiatric examinees with high elevations on F. Implications and suggestions for future research are provided.

Adult↗
PubMed1992

MMPI profiles in patients with headache or craniofacial pain: a comparative study.

Our purpose was to examine the MMPI profiles of 157 patients with chronic headache or facial pain. The following diagnostic groups were considered: tension-type headache (n = 44); migraine + cluster headache + chronic paroxysmal hemicrania (20); trigeminal neuralgia (7); atypical facial pain (AFP) (33); temporomandibular joint dysfunction (TMJ) (53). There were two control groups: C1 of 27 healthy individuals and C2 of 18 patients with chronic pain located elsewhere. A "Pain Index" was calculated (0-10) which quantified pattern, duration and frequency of pain. The Italian MMPI abbreviated version was administered to all subjects. One-way Anova, the Duncan test and correlation analysis were performed. Of the diagnostic groups, AFP scored highest and TMJ lowest in all except three scales. In the AFP group, all neurotic scales scored above 70. The Pain Index correlated with higher scores on most scales. Chronic pain may lead to personality alterations, but some features of craniofacial pain correlate with specific personality disturbances.

Adolescent↗
PubMed2000

Cluster of MMPI personality profiles in chronic tension-type headache and predictable response to Fluoxetine.

A study was made of the personality profiles of a sample of 51 patients with chronic tension-type headache (CTH) employing the Minnesota Multiphasic Personality Inventory (MMPI). Two clusters were obtained by applying multivariate classification techniques: cluster 1 (with elevations on scales Hy, D and Hs only) and cluster 2 (exhibiting elevations on most scales except Pd, Mf and Si). Fifty subjects without chronic pain or known psychiatric disorders, and extracted from the same social setting as the patients, completed the MMPI as a control group. Fluoxetine treatment was started in the CTH group, with follow-up over a 1-year period. Chi-squared analysis correlating the clusters obtained to different pain-related variables and epidemiological parameters revealed a significant association to sex only. There were no differences in therapeutic response between the two clusters. However, the patients belonging to the less perturbed cluster who exhibited profiles analogous to those of the control population showed significant improvement with respect to the global sample and their own cluster.

Adult↗
PubMed2000

Prospective study of the MMPI-2 correction factor after mild head injury.

Gass (1991) proposed a correction factor composed of 14 MMPI-2 items that were characteristically endorsed by patients with closed-head injury. Their frequency of occurrence suggested that the items reflected the neurological rather than emotional consequences of head injury. The current study was designed to evaluate the interpretive significance of correction factor items after mild head trauma. Patients were examined immediately upon hospitalization and followed prospectively for at least 3 months. Correction factor items were endorsed more frequently during acute hospitalization than in the MMPI-2 standardization sample. At follow-up, none of the items were endorsed more often by patients with chronic mild head injury than by uninjured controls. These results suggest that the correction factor is sensitive to the acute neurological consequences of mild head trauma, but that these symptoms can typically be expected to resolve. Chronic endorsement of the items in this population is therefore most likely related to psychological factors.

Adult↗
PubMed2004

Detecting incomplete effort on the MMPI-2: an examination of the Fake-Bad Scale in mild head injury.

The current study is an investigation of the MMPI-2 Fake Bad Scale ( FBS ) in the detection of incomplete effort in mild head injury (MHI). Using ROC curve analysis, we found that a cutoff score of 21 had a sensitivity of 90% and specificity of 90%, providing an overall correct classificatory rate of 90%. In addition, traditional indices of faking bad on the MMPI-2, the F and F-K indices, fared relatively poorly by comparison and added no predictive power over the FBS. Finally, multivariate analyses revealed that although the FBS shares a number of items with Hs and Hy scales, the FBS carried the majority of variance in predicting incomplete effort in our MHI sample. Overall, these findings indicate that the FBS has high sensitivity and specificity in identifying incomplete effort in mild head injury.

Adult↗
PubMed1990

An examination of the stability of the MMPI Personality Disorder Scales.

Recently, a set of Minnesota Multiphasic Personality Inventory (MMPI) scales for the diagnosis of personality disorders have attracted research attention. As personality disorders are thought to represent long-standing trait disturbances, any measure of these disorders should be stable over time and relatively free from state influences. This study investigated the stability of the MMPI scales in 67 subjects across a brief inpatient treatment for substance abuse. The results indicated high levels of stability across the 3-week treatment period.

Adult↗
PubMed1990

MMPI supplemental scale performance of Mexican Americans and level of acculturation.

Mexican American and Anglo American's performance on the Wiggins Content Scales, Harris-Lingoes subscales, and Serkownek subscales was assessed in a college student population. Level of acculturation (Mexican vs. Anglo orientation), age, and social class were statistically controlled. The results showed statistically significant differences between means of Anglo and Mexican Americans on most of the supplemental scales assessed. These differences were more numerous before scale validity criteria were applied. The number of statistically significant differences were further reduced when level of acculturation and age were statistically controlled. The results showed that level of acculturation is a highly important variable which moderates interpretation of the MMPI scale elevations we measured. Acculturation far outweighed the influence of the well established MMPI moderator variables of age and social class.

Acculturation↗
PubMed1990

Recent adolescent MMPI norms: T-score elevation comparisons to Marks and Briggs.

Minnesota Multiphasic Personality Inventory (MMPI) norms developed by Marks and Briggs (1967/1972) have served as the standard adolescent norms used for over 10 years. Additional adolescent norms have recently been produced by Gottesman, Hanson, Kroeker, and Briggs (1987) and by Colligan and Offord (1989), thereby providing MMPI users with a potential choice of adolescent norms. Our study examines the effects of these adolescent norm sets on single-scale and profile elevations. In addition, we examine the ability of these norm sets to generate T-score values that would serve to discriminate accurately among adolescents in outpatient (n = 100), inpatient (n = 100), and normal (n = 100) settings. Results indicated that the choice of adolescent norms resulted in important differences in profile elevation. Findings from the discriminant function analyses, however, indicated that these normative sets were roughly equivalent in discriminating among adolescents in the three settings.

Adjustment Disorders↗
PubMed1990

Stability of MMPI scale scores within four codetypes across forty years.

The changes in the standard validity and clinical scales on the Minnesota Multiphasic Personality Inventory (MMPI) were examined within four frequently occurring codetypes (Spike 4, 2-4/4-2, 2-7/7-2, and 6-8/8-6) in samples of psychiatric patients over a time span of 40 years. The validity and clinical scale scores within these four codetypes were very stable over this time span with differences in the range of only a few T-score points. These results are very similar to those reported by Pancoast and Archer (1989) who found remarkable stability in the MMPI scale scores of normal adult samples across 40 years.

Adult↗
PubMed1990

MMPI characteristics of drug abusers with and without histories of suicide attempts.

Compared to drug addicts without histories of suicidal attempt (n = 50), drug addicts who have attempted suicide (n = 50) were characterized by higher levels of maladjustment--particularly in the areas of depression, feelings of alienation, and use of projection and externalization--and were more emotionally withdrawn. Certain Minnesota Multiphasic Personality Inventory (MMPI) codetypes appeared in the attempt group that were not present in the no history group. Drug addicts with suicidal ideation but no history of attempt (n = 13) were not significantly different from the other two groups, and their inclusion as a comparison group masked the real differences between the other two groups. The MMPI results suggest it may be possible to identify a suicide attempt group in substance abusers but not when contrasted with a suicidal ideation group. Treatment implications are considered.

Adult↗
PubMed2005

Neuropsychological functioning and MMPI-2 profiles in chronic neck pain: a comparison of whiplash and non-traumatic groups.

We measured the neuropsychological functioning in 42 patients with chronic neck pain, 21 with a whiplash trauma and 21 without previous trauma. Subjectively, the whiplash group was more forgetful and had more concentration difficulties compared with the non-traumatic group. The neuropsychological tests did not reveal any differences between the two groups and a reference group of healthy individuals. Thus, chronic neck pain did not seem to interfere with neuropsychological functioning. The personality traits assessed with MMPI-2 in our 42 patients with chronic neck pain differed significantly from the normals on several scales. We also found that the whiplash group had more divergent test results than the non-traumatic group on the MMPI-2 test. Thus, it seems that the health status in those with chronic neck pain is closely linked to separate personality traits. It is concluded that the subjective complaints and poor performance in patients with chronic neck pain may be associated to somatization and inadequate coping, especially in chronic whiplash patients.

Adult↗
PubMed2004

The Fake Bad Scale and MMPI-2 F-family in detection of implausible psychological trauma claims.

We tested the validity of the Lees-Haley Fake Bad Scale (FBS) and the family of MMPI-2 F scales (F-family; F, F(p), and F-K scales) in predicting improbable psychological trauma claims in an applied setting. Litigants reporting implausible symptoms long after minor scares and nonlitigants clinically referred following severe stressors completed the MMPI-2. Both groups were naturally matched on social class. The FBS demonstrated sensitivity, specificity, and positive predictive power in the detection of atypical problems but the F-family showed poor utility. FBS cutting scores derived from logistic regression were applied to a third group made up of litigants with histories of undeniably severe traumas. A substantial number of this third group scored above cutoffs for exaggeration, but this finding is ambiguous. Reasons for the F-family's insensitivity to real-world exaggeration may include using student simulators for validation and content reflective of psychotic simulation. The superiority of the FBS in applied forensic settings could derive from its development in actual litigants and content reflective of nonpsychotic exaggerations. The FBS appears acceptable for use in applied forensic settings where persons seek compensation for nonpsychotic syndromes.

Adult↗
PubMed2006

The Henry-Heilbronner Index: a 15-item empirically derived MMPI-2 subscale for identifying probable malingering in personal injury litigants and disability claimants.

A new 15-item MMPI-2 subscale, the Henry-Heilbronner Index (HHI), representing a "pseudosomatic factor," was empirically derived from both the 43-item Lees-Haley Fake Bad Scale (FBS) and the 17-item Shaw and Matthews' Pseudoneurologic Scale (PNS). The HHI was superior to both the FBS and PNS in identification of symptom exaggeration in personal injury litigants and disability claimants compared to non-litigating head-injured controls. Logistic regression analyses revealed that a cutscore of > or = 8 on the HHI was associated with good specificity (89%) and sensitivity (80%). These results suggest that the HHI may be useful in identifying personal injury litigants and disability claimants who exaggerate, overreport, or malinger physical symptoms on the MMPI-2 related to their current health and/or litigation status.

Adult↗